of air traffic controllerring told to stay home, control tower closed because of sequestration and faa chief said expect delays if you are flying this weekend. investors and markets try to work through the massive news flow, we watch every move, count down to the closing bell starts right now. liz: good afternoon i am liz claman, we want to get you latest and effort that led to what happening right now in boston bombing investigation. these two brothers now identified as marathon bombing suspects were living in cambridge, they are of chechen decent, under massive pressure after photos revealed yesterday, by fbi, killed an m.i.t. campus officer, then carjacked a mercedes suv overnight, police in hot pursuit chased them to watewatertown, a deafening gunft overnight ensued. shattering a neighborhood, listen to this. [ sound of gunfire ] dogs barking neighbors running people cowering in homes one of suspects 26-year-old tamerlan tsarnaev was killed his brother dzhokhar still on the loose, we'll keep up a split screen or depending on what is happening a big/little. we'll break in with any n